ronscola27 ronscola27
  • 05-05-2020
  • Mathematics
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If a circle has a radius of \sqrt{13}
​
and is centered at (9, -3), what is the equation of this circle?

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 05-05-2020

Answer:

(x-9)^2 + (y+3)^2 = 13

Step-by-step explanation:

The equation of a circle can be written as

(x-h)^2 + (y-k)^2 = r^2

Where (h,k) is the center and r is the radius

(x-9)^2 + (y--3)^2 = (sqrt(13))^2

(x-9)^2 + (y+3)^2 = 13

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